Dual mirror



FIG. 1 is a perspective view of the dual mirror;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a perspective view of another embodiment of the design; and,

FIG. 6 is a top view of another embodiment of the design.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for dual mirror, as shown and described. 